The effects of choice set size and information filtering mechanisms on online hotel booking

Online booking is one of the most popular ways of making reservations for hotel guests. Thus, hoteliers are paying increasing attention to hotel website information presentation and design. The purpose of this study, then, is to examine the joint influence of choice set size and information filtering mechanisms on consumers’ decision confidence towards online hotel booking. Choice set size was operationalized through 3-, 9-, and 30-hotel room choice sets. Through experimental design, this study shows that the presence of an information filtering mechanism reduces consumers’ perceptions of choice overload with a large number of choices (30 choices), whereas its impact is attenuated with smaller choice sets (3 and 9 choices). In addition, choice overload mediates the impact of choice set size on decision confidence. Theoretical contribution and managerial implications are also discussed.     

不完备信息系统辐射源威胁等级判定

针对不完备信息系统条件下的辐射源威胁等级判定问题,提出了一种基于改进容差关系粗糙集（ITR-RS）的不完备信息系统辐射源威胁等级判定方法。该方法将粗糙集中的不完备信息系统理论引入辐射源威胁等级判定中,并构建一套完备的决策规则提取模型。此外,利用辨识矩阵实现对属性的约简,在降低系统所需处理数据量的同时,提高了算法的实时性;在容差关系粗糙集的基础上,提出一种改进的容差关系,在属性主、客权重相结合的基础上引入阈值来划分加权阈值容差类,得到更为合理、准确的决策规则。仿真试验及分析表明,与经典RS算法相比,所提算法的威胁等级判定正确率提高了23%,可用于信息系统不完备条件下的辐射源威胁等级判定。     

The impact of CSR on corporate reputation perceptions of the public—A configurational multi‐time,multi‐source perspective

This study investigates the connection between corporate social responsibility (CSR) and corporate reputation among the public using fuzzy set qualitative comparative analysis (fsQCA). To examine complex processes underlying the reactions of this influential stakeholder group, hypotheses are drawn from the category diagnosticity approach. Thereby, a psychological model of perceived (im)morality is transferred to the CSR context. In line with these hypotheses, positive/negative CSR activities influence reputation in the expected directions (H1a, b), while the effects of specific configurations of CSR activities reveal an asymmetry suggesting a negativity bias (H2). Further analyses confirm that positive effects require a consistent positive performance regarding prior reputations (H3a) and the aggregated CSR activities of several previous years (H3b, c). Moreover, the relevant patterns vary between industries (H4). The present study thus contributes to CSR research by investigating a powerful but hitherto understudied stakeholder group through a category diagnosticity lens combined with a configurational approach to analysis.     

A unified approach to systemic risk measures via acceptance sets

We specify a general methodological framework for systemic risk measures via multidimensional acceptance sets and aggregation functions. Existing systemic risk measures can usually be interpreted as the minimal amount of cash needed to secure the system after aggregating individual risks. In contrast, our approach also includes systemic risk measures that can be interpreted as the minimal amount of cash that secures the aggregated system by allocating capital to the single institutions before aggregating the individual risks. An important feature of our approach is the possibility of allocating cash according to the future state of the system (scenario‐dependent allocation). We also provide conditions that ensure monotonicity, convexity, or quasi‐convexity of our systemic risk measures.     

打造中国零售连锁企业物流系统,开掘“第三利润源泉”

现代物流已成为企业的"第三利润源泉"。中国零售连锁企业应根据自身特有条件,在把企业做大的同时注重自身物流系统的配套发展,使其成为中国零售连锁企业"第三利润源泉"。     

Codes of Ethics as Signals for Ethical Behavior

This study investigated effects of codes of ethics on perceptions of ethical behavior. Respondents from companies with codes of ethics (n = 465) rated role set members (top management, supervisors, peers, subordinates, self) as more ethical and felt more encouraged and supported for ethical behavior than respondents from companies without codes (n = 301). Key aspects of the organizational climate, such as supportiveness for ethical behavior, freedom to act ethically, and satisfaction with the outcome of ethical problems were impacted by the presence of an ethics code. The mere presence of a code of ethics appears to have a positive impact on perceptions of ethical behavior in organizations, even when respondents cannot recall specific content of the code.     

从走出家庭看西丽的成长

艾丽斯.沃克的《紫色》是一部著名的反映黑人女性成长问题的成长小说,主人翁西丽的走出家庭独立谋生是小说的重要情节。西丽没有重蹈娜拉可能走的两条路,而是在物质上和精神上彻底独立起来,重新找回了自我,实现了人生的价值,为自己赢得了平等与尊重,终于完成了成长。西丽这一形象在当下社会对广大女性依然具有启迪作用和教育意义。     

De-internationalization through the lens of intellectual property rights

Many studies have focused on internationalization, with few shedding light on de-internationalization. In this article, we contended that de-internationalization is common in a world of matured globalization, yet it remains underexplored. We sought to build on the seminal articles on de-internationalization by extending our understanding of the concept from a voluntary to an involuntary perspective. In particular, we used intellectual property rights as an institutional coercive dimension and set theory as a discerning mechanism to enrich our understanding of de-internationalization. Our article, which demonstrates the multi-faceted conditions of de-internationalization, should benefit formal institutions and policy makers in developing a greater understanding of the relationship between public policies and focal firms' decisions to de-internationalize. We also hope that our article will contribute to greater visibility of de-internationalization and make the concept more approachable to our international business audience.     

Information search and consideration set formation in a web-based store environment

The research reported here attempts to understand information search and consideration set formation in a web-based choice environment. A conceptual model is used to propose hypotheses that link information search and consideration set formation with two task environment influences that are typical of online settings. A study that simulates information search and consideration set formation in a web-based choice environment is conducted to test the hypotheses. The results offer insights into how the number of available alternatives and the amount of time available may have an effect on search and evaluation in a web-based store. The research has implications for understanding how consumers shop in online stores.     

考虑通信质量的网络最小主控集生成算法

无人移动平台无线ad hoc网络在实际应用中经常会出现由于电磁环境、干扰等因素导致通信质量不稳定的情况,在上述条件下传统的基于节点覆盖度的最小主控集（MCS）生成算法难以获得具有较好稳定性、健壮性的最小主控集。为此,提出了一种考虑通信质量的网络最小主控集生成算法,将链路的通信质量纳入网络最小主控集构造的考虑因素,使网络拓扑与链路通信质量特性保持一致;并通过对候选节点集及拟覆盖节点集的压缩,有效控制了网络最小主控集的节点数目。仿真表明,对敏感于通信质量的应用,该算法较基于节点覆盖度算法能取得更好效果。